FR6-9 Flange Ball Bearings
| FR6-9 Flange Ball Bearings | |||
|---|---|---|---|
| Part Number | FR6-9 | Ball Number | 7 |
| d | 9.525 | Ball Size | 2.381 |
| R | 0.3 | Dynamic Load Co(N) | 1350 |
| D/D1 | 14.2875/15.875 | Static Load Cor(N) | 630 |
| B/C | 4.978/1.067 | Grease Speed | 34000 |
| Weight(Kg) | 0.0014 | Oil Speed | 40000 |
FR6-9 Flange Deep Groove Bearing | Open, ZZ, 2RS High Precision Micro Bearing
The FR6-9 flange deep groove ball bearing is a high-precision micro flange bearing designed for compact, space-constrained miniature mechanical systems requiring improved load capacity, rigid axial positioning and stable long-term high-speed cyclic operation. Featuring an integrally formed reinforced flange and ultra-precision polished deep groove raceways, this micro bearing delivers outstanding dimensional stability, ultra-low vibration and consistent rotary smoothness during continuous repetitive operation. The one-piece flange structure removes extra positioning hardware, accelerates fast precision assembly, and effectively prevents shaft offset, axial play and micro mechanical shaking in densely configured compact equipment layouts. Available in three standard industrial versions: FR6-9 open type, FR6-9ZZ double metal shield type and FR6-9-2RS double rubber sealed type, it performs reliably in dry, dusty, humid and mildly corrosive indoor and outdoor working environments. Offered in carbon steel, 304 stainless steel, 316 stainless steel, 420 stainless steel and 440 stainless steel, the FR6-9 fully covers economical, sanitary, high-wear and anti-corrosion micro precision industrial application requirements.
FR6-9 Open / ZZ / 2RS Structural Features
FR6-9 Open Type: The unsealed open structure enables unobstructed air circulation and efficient heat dissipation, eliminating thermal accumulation and precision degradation during prolonged high-speed micro operation. It supports convenient grease refilling and tool-free routine maintenance without increasing rotational resistance. Perfect for clean, dry indoor workshops and fully enclosed miniature precision machinery, it maintains stable running accuracy and long operational service life.
FR6-9ZZ Double Metal Shields: Equipped with dual non-contact steel shields, the FR6-9ZZ effectively blocks fine dry dust, floating particles and micro industrial debris. The non-contact protective design preserves original high-speed smoothness and micro precision with minimal friction loss. Featuring reliable structural durability and excellent cost performance, this model is widely used in dry industrial workshops and long-running miniature precision automation equipment.
FR6-9-2RS Double Rubber Seals: The fully sealed 2RS structure adopts double-sided contact rubber seals to comprehensively isolate moisture, water splashes, oil mist and corrosive fine dust. It tightly locks internal lubricating grease to prevent leakage, oxidation and aging, realizing long-term maintenance-free operation for humid, dusty and complex micro mechanical working scenarios.
FR6-9 Bearing Material Performance
Carbon Steel: High cost-performance industrial base material with uniform hardness and stable anti-fatigue properties. Carbon steel FR6-9 bearings provide reliable wear resistance and smooth high-speed rotation, ideal for mass production and budget-sensitive miniature precision automation projects.
304 Stainless Steel: Food-grade rust-resistant stainless steel with superior oxidation resistance. It resists mild micro corrosion in humid and open environments, suitable for miniature food processing parts, compact medical devices and sanitary-grade micro precision mechanical systems.
316 Stainless Steel: Marine-grade anti-corrosion material with strong resistance to salt spray, acid and alkali erosion. It retains stable structural precision in coastal high-humidity and light chemical environments for marine micro instruments and miniature chemical equipment.
420 Stainless Steel: High-toughness martensitic stainless steel balancing moderate corrosion resistance and high surface hardness. It ensures stable wear resistance and precise dimensional stability during continuous high-speed cyclic operation.
440 Stainless Steel: Ultra-high hardness stainless steel with top-tier abrasion resistance. It withstands severe friction wear and weak corrosive conditions, supporting long-term accurate and stable rotation for high-end micro precision mechanical systems.
Core Advantages And Industrial Applications
The FR6-9 ultra-compact micro flange bearing features a reinforced lightweight structure, upgraded load capacity, rigid flange positioning, ultra-quiet operation and durable high-speed precision. Multiple sealing options and diversified material grades fully meet industrial demands for cost efficiency, sanitation, wear resistance and corrosion protection. Widely applied in ultra-miniature high-speed motors, micro drone precision components, slim robotic micro joints, portable optical micro instruments, miniature transmission systems, tiny precision power tools and compact micro medical devices, the FR6-9 acts as a core rotary and positioning component for space-limited micro mechanical structures. It delivers high-efficiency, low-noise and low-maintenance precision rotation solutions for modern miniaturized industrial, commercial and sanitary precision automation equipment.
